UIImageWriteToSavedPhotosAlbum showing memory leak with iPhone connected to Instruments
- by user168739
Hi,
I'm using version 3.0.1 of the SDK.
With the iPhone connected to Instruments I'm getting a memory leak when I call UIImageWriteToSavedPhotosAlbum.
Below is my code:
NSString *gnTmpStr = [NSString stringWithFormat:@"%d", count];
UIImage *ganTmpImage = [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:gnTmpStr ofType:@"jpg"]];
// Request to save the image to camera roll
UIImageWriteToSavedPhotosAlbum(ganTmpImage, self, @selector(imageSavedToPhotosAlbum:didFinishSavingWithError:contextInfo:), nil);
and the selector method
- (void)imageSavedToPhotosAlbum:(UIImage *)image didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo {
NSString *message;
NSString *title;
if (!error)
{
title = @"Wallpaper";
message = @"Wallpaper Saved";
}
else
{
title = @"Error";
message = [error description];
}
UIAlertView *alert = [[UIAlertView alloc]
initWithTitle:title
message:message
delegate:self
cancelButtonTitle:@"OK"
otherButtonTitles:nil];
[alert show];
[alert release];
}
Am I forgetting to release something once the image has been saved and the selector method imageSavedToPhotosAlbum is called? Or is there a possible known issue with UIImageWriteToSavedPhotosAlbum?
Here is the stack trace from Instruments:
Leaked Object: GeneralBlock-3584
size: 3.50 KB
30 MyApp start
29 MyApp main /Users/user/Desktop/MyApp/main.m:14
28 UIKit UIApplicationMain
27 UIKit -[UIApplication _run]
26 GraphicsServices GSEventRunModal
25 CoreFoundation CFRunLoopRunInMode
24 CoreFoundation CFRunLoopRunSpecific
23 GraphicsServices PurpleEventCallback
22 UIKit _UIApplicationHandleEvent
21 UIKit -[UIApplication sendEvent:]
20 UIKit -[UIWindow sendEvent:]
19 UIKit -[UIWindow _sendTouchesForEvent:]
18 UIKit -[UIControl touchesEnded:withEvent:]
17 UIKit -[UIControl(Internal) _sendActionsForEvents:withEvent:]
16 UIKit -[UIControl sendAction:to:forEvent:]
15 UIKit -[UIApplication sendAction:toTarget:fromSender:forEvent:]
14 UIKit -[UIApplication sendAction:to:from:forEvent:]
13 CoreFoundation -[NSObject performSelector:withObject:withObject:]
12 UIKit -[UIBarButtonItem(Internal) _sendAction:withEvent:]
11 UIKit -[UIApplication sendAction:to:from:forEvent:]
10 CoreFoundation -[NSObject performSelector:withObject:withObject:]
9 MyApp -[FlipsideViewController svPhoto] /Users/user/Desktop/MyApp/Classes/FlipsideViewController.m:218
8 0x317fa528
7 0x317e3628
6 0x317e3730
5 0x317edda4
4 0x3180fc74
3 Foundation +[NSThread detachNewThreadSelector:toTarget:withObject:]
2 Foundation -[NSThread start]
1 libSystem.B.dylib pthread_create
0 libSystem.B.dylib malloc
I did a test with a new project and only added this code below in the viewDidLoad:
NSString *gnTmpStr = [NSString stringWithFormat:@"DefaultTest"];
UIImage *ganTmpImage = [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:gnTmpStr ofType:@"png"]];
// Request to save the image to camera roll
UIImageWriteToSavedPhotosAlbum(ganTmpImage, nil, nil, nil);
The same leak shows up right after the app loads
Thank you for the help.
Bryan
